论文标题
粗糙薄膜的散射：DDA模拟
Scattering from rough thin films: DDA-simulations
论文作者
论文摘要
我们使用离散 - 偶极近似的恒定厚度变形薄膜的波光光散射特性。研究了由于不同的统计粗糙度模型，依赖性粗糙度参数以及不相关的不均匀培养基的不相关的随机小规模孔隙率，对散射光的强度分布的影响。通过将薄膜视为计算可行的粗糙表面类似物，可以评估离散二极管近似与粗糙表面散射问题的可用性。将散射介质的小规模不均匀性与麦克斯韦·加内特（Maxwell Garnett）的分析近似进行了比较，结果发现结果与近似值一致。
We investigate the wave-optical light scattering properties of deformed thin circular films of constant thickness using the discrete-dipole approximation. Effects on the intensity distribution of the scattered light due to different statistical roughness models, model dependant roughness parameters, and uncorrelated random small-scale porosity of the inhomogeneous medium are studied. The usability of discrete-dipole approximation to rough-surface scattering problems is evaluated by considering thin films as computationally feasible rough-surface analogs. The effects due to small-scale inhomogeneity of the scattering medium are compared with the analytic approximation by Maxwell Garnett and the results are found to agree with the approximation.
